Improvement in floor-clamps



`THOMAS S. URIE, OF HUBBARDSTON, ASSIGNOR TO HIMSELF AND GEORGE H.

CAGWIN, OF CARSON CITY, MICHIGAN.

IMPROVEMENT IN FLOOR-CLANIPS.

Specification forming part of Letters Patent No. 119,203, datedSeptember 19,1871.

Figure 1 represents a side view of my improved floor-clamp. Fig. 2 is anend view of the same.

Similar letters of reference mdicate corresponding parts.

This invention relates to a new apparatus forclamping floor-boardsagainst one another previous to their being nailed to the beams; andconsists in a new combination of levers and jaws with a jointedsupporting-frame.

A in the drawing represents the yoke-shaped frame of theiloor-clamp. Itis jointed at a, so as to form two legs, b and c. The lower ends of saidlegs carry cross-pieces or supports d e, respectively. To thecross-piece d of the leg b are pivoted two levers, B and C, which formjaws ff at their lower ends. Their upper ends are at different pointsunited with a lever, D, as shown in Fig. 2. To an arm, g, projectingfrom the inner edge of the leg b, is pivoted one end of a lever, E. Thesaid lever is, bya link, h, also Vconnected with the leg C of the frame.

The apparatus is usedby clamping the jaws f f against the sides of abeam, as in Fig. 2, .and then swinging the lever E so as to carry thecrosspiece e against the board to be clamped. The lever E can then belocked by a pawl, F, which is pivoted ^to the leg b, and lits intonotches cut into the upper edge ofthe lever, as shown.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The oor-clamp,consisting of the jointed frame A,jaw-levers B C, and operating-levers D and E, all combined substantiallyas herein shown and described.

THOMAS S. URIE. Witnesses:

ALBERT G. RUSSELL, B. G. CooLEY.

